A MAGNET FOR ODD INTRUDERS

The black humor at week's end around the White House was that terrorists, intruders and pranksters were going to have to get tickets and line up just like the 1 1/4 million tourists who come every year to view and pay homage to the world's most famous building.

In one week's flurry, the White House became more protected and yet more of a magnet for intrusion. Only three days after Pennsylvania Avenue in front of the White House was abruptly closed to vehicular traffic as a caution against a truck-bomb attack, the first of two interlopers challenged the security sytem. A...